Clothing for a cleaning or opening roller

Abstract

A toothed strip or forming a clothing on a roller is formed of a plurality of teeth disposed along a front face of the face in alternating relation with a plurality of troughs. Each tooth has an equilateral triangle shaped front face with a flat apex and an equilateral triangle shaped back which extends from the apex of the front face of the tooth. Each trough is inclined upwardly from the front face of the strip towards the rear and merges into the backs of adjacent teeth. During operation, fibers are able to fold about the teeth without the free ends of the fibers coming together and coiling.

What is claimed is: 
     
       1. A toothed strip for forming a clothing on a roller, said strip including a plurality of teeth disposed along a front face of the strip in alternating relation with a plurality of troughs, each said tooth having an equilateral triangular shaped front face and an equilateral triangular shaped back, each said back having an apex at said front face of the strip; and   each said trough being inclined upwardly from said front face of the strip towards a rear thereof.   
     
     
       2. A toothed strip as set forth in claim 1 wherein each tooth has a flat apex at said front face of a width of about 2 millimeters. 
     
     
       3. A toothed strip as set forth in claim 2 wherein each tooth back slopes down rearwardly from said flat apex of said tooth. 
     
     
       4. A toothed strip as set forth in claim 3 wherein each tooth back slopes down on an angle to a horizontal plane of from 10° to 20°. 
     
     
       5. A toothed strip as set forth in claim 4 wherein each trough slopes upwardly to said horizontal plane on an angle of from 25° to 47°. 
     
     
       6. A toothed strip as set forth in claim 1 wherein said teeth are spaced apart a distance of from 11 to 18 millimeters. 
     
     
       7. A toothed strip as set forth in claim 1 wherein each tooth is of a height from a root thereof to said apex thereof of from 9 to 15 millimeters. 
     
     
       8. A toothed strip as set forth in claim 1 wherein each trough has a semi-circular base of a radius of from 1 to 4 millimeters. 
     
     
       9. A toothed strip as set forth in claim 1 wherein said front face of each tooth is perpendicular to a base of the strip. 
     
     
       10. A toothed strip as set forth in claim 1 wherein said front face of each tooth is inclined to a base of the strip. 
     
     
       11. A toothed strip as set forth in claim 10 wherein said front face of each tooth is inclined to a perpendicular plane to said base on an angle of -10° to +10°. 
     
     
       12. A toothed strip as set forth in claim 1 wherein the strip has a plurality of openings in a strip-shaped zone behind said teeth for passage of screws therethrough. 
     
     
       13. A toothed strip as set forth in claim 1 wherein each trough has a lowest point at a distance in the range of about 3 millimeters from a base of the strip. 
     
     
       14. A toothed strip as set forth in claim 1 wherein each tooth has blunt edges. 
     
     
       15. A toothed strip for a clothing of a roller comprising a plurality of teeth disposed along a front face of the strip, each said tooth having a front face of equilateral triangular shape with a flat apex at said front face of the strip and a flat back of equilateral triangular shape extending from said front face; and   a plurality of troughs disposed in alternating relation with said teeth, each said trough being inclined upwardly from said front face of the strip towards a rear thereof.   
     
     
       16. A toothed strip as set forth in claim 15 wherein said front face of each tooth is inclined forwardly to a base of the strip. 
     
     
       17. A toothed strip as set forth in claim 15 wherein said block of each tooth slopes down rearwardly from said front face of the strip. 
     
     
       18. A toothed strip as set forth in claim 15 which further comprises a strip-shaped zone rearwardly of said teeth, said zone having at least one stepped bore for receiving a screw for securing the strip to a roller. 
     
     
       19. A toothed strip as set forth in claim 15 wherein said teeth are spaced apart a distance of from 11 to 18 millimeters, and each tooth has a height of from 9 to 15 millimeters. 
     
     
       20. A toothed strip as set forth in claim 19 wherein each trough has a semi-circular base of a radius of from 1 to 4 millimeters.